Jeffrey Scott Radcliffe,Michael Glatzer,Mark Wilson Jacob,Reginald Antonio Terrell
申请号：
US14260361
公开号：
US09055983B1
申请日:
2014.04.24
申请国别(地区):
US
年份:
2015
代理人:
摘要：
The present invention provides a unique way to provide a self-locking screw opening that has no separate parts. The self-locking feature (20) is formed in the wall (11) of the screw receiver opening (12) and automatically locks a screw (100) from backing out. During insertion of the screw (100) into bone, the screw head (110) passes one or more, preferably two nubs (20) or one or more projections (20) formed into the surface wall (11) of the receiver opening (12), and as the screw (100) is threaded into the bone, the screw head (110) contacts the nubs (20) or projection (20) and the screw (100) is deflected slightly in a direction opposite the nubs (20) or projection (20) allowing the screw head (110) to pass by the nubs (20) or projection (20) locking the screw (100) from backing out.
